Emrys::HasLogDensity Concept Reference

A density: a type that evaluates its log-density at a value in its space, such as a Gaussian, a KernelDensity, or a Uniform. More...

#include <EmrysFilter/Distributions/Product.h>

Concept definition

template<typename T>
concept HasLogDensity = requires(
    T const & density,
    Eigen::Matrix<
        typename T::Scalar,
        T::ValueDimensionAtCompileTime,
        1,
        Eigen::ColMajor,
        T::MaxValueDimensionAtCompileTime,
        1> const & x
) {
    typename T::SpaceType;
    { Emrys::valueDimension(density.space()) } -> std::convertible_to<Eigen::Index>;
    { density.logDensity(x) } -> std::convertible_to<typename T::Scalar>;
}

Detailed Description

A density: a type that evaluates its log-density at a value in its space, such as a Gaussian, a KernelDensity, or a Uniform.